CN105306021B - A kind of double polarity pulse signal generation device - Google Patents
A kind of double polarity pulse signal generation device Download PDFInfo
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- CN105306021B CN105306021B CN201510783421.0A CN201510783421A CN105306021B CN 105306021 B CN105306021 B CN 105306021B CN 201510783421 A CN201510783421 A CN 201510783421A CN 105306021 B CN105306021 B CN 105306021B
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- pulse signal
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- unipolar pulse
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Abstract
The present invention provides a kind of double polarity pulse signal generation device, including：Unipolar pulse output unit, for output single-pole pulse signal；Piezoelectric ceramic transformer, including input, output end and piezoelectrics, its input terminal is connect with the unipolar pulse output unit, for receiving the unipolar pulse signal, the piezoelectrics are used to the unipolar pulse signal being converted to double polarity pulse signal, and output terminal is used to export the double polarity pulse signal.
Description
Technical field
The present invention relates to Electric signal processing fields, and in particular to a kind of double polarity pulse signal generation device.
Background technology
Double polarity pulse signal has many purposes, and existing scheme is to generate bipolar pulse by push-pull type switching circuit
Signal.Fig. 1 shows a push-pull type switching circuit, and the circuit as shown in Figure 1 includes driving circuit L1, driving circuit L2, with
And switching tube Q1, switching tube Q2, capacitor C1, capacitor C2, diode D1, diode D2, positive and negative power supply.The circuit is by L1
Output driving current is alternated with L2, Q1, Q2 is alternated and connects positive and negative power supply, thus provide bipolarity arteries and veins to load
Rush signal.
Problem of the prior art is that the structure of double polarity pulse signal generation circuit is more complicated, the switching tube in circuit
Wait the parameter of devices that will determine the parameter of the double polarity pulse signal exported, it can be seen that existing double polarity pulse signal occurs
Equipment parameters affect of the circuit in by circuit is larger, and easily by electromagnetic interference influence, and hardware cost is higher.
Invention content
Therefore, the technical problem to be solved in the present invention is to overcome double polarity pulse signal generation circuit of the prior art
Complicated and performance the defects of being influenced by switching circuit component.
To solve the above problems, the present invention provides a kind of double polarity pulse signal generation device, including：Unipolar pulse is defeated
Go out unit, for output single-pole pulse signal；Piezoelectric ceramic transformer, including input, output end and piezoelectrics, input
End is connect with the unipolar pulse output unit, and for receiving the unipolar pulse signal, the piezoelectrics are used for institute
It states unipolar pulse signal and is converted to double polarity pulse signal, output terminal is used to export the double polarity pulse signal.
Preferably, the type of the piezoelectric ceramic transformer includes single layer piezoelectric ceramic transformer and multilayer piezoelectric ceramic becomes
Depressor.
Preferably, the piezoelectric ceramic transformer is multilayer piezoelectric ceramic transformer, described to output and input positioned at multiple
Wherein one layer in lamination.
Preferably, the type of the piezoelectric ceramic transformer includes length vibration shape piezoelectric transformer, profile vibration shape piezoelectricity becomes
Depressor, thickness vibration shape piezoelectric transformer, shearing vibration shape piezoelectric transformer.
Preferably, the type of the piezoelectric ceramic transformer includes booster type transformer and step-down type transformer.
Preferably, the shape of the piezoelectric ceramic transformer includes rectangular plate-like, circular plate, triangle plate, annular
Plate.
Preferably, the unipolar pulse output unit is unipolar pulse signal generator.
Preferably, the unipolar pulse output unit includes：Square wave signal generator, for exporting square-wave pulse letter
Number；Logic gates, for the square-wave pulse signal to be converted to the unipolar pulse signal with specific pulsewidth.
Technical solution of the present invention has the following advantages that：
Double polarity pulse signal generation device provided by the invention is by high frequency piezo transformer to unipolar pulse signal
It is converted to generate bipolar pulse, circuit structure is simple, and device volume is small, exports the centre frequency of pulse and piezoelectricity pressure
The resonant frequency of electroceramics transformer is related, can reach very high-frequency, overcome itself parameter system of electronic device in traditional circuit
About, and the characteristic due to piezoelectric ceramic transformer in itself, the device by electromagnetic field effects, will not generate electromagnetic radiation.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution of the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is existing push-pull circuit structure structure chart；
Fig. 2 is double polarity pulse signal generation device structure diagram provided by the invention；
Fig. 3 is the structure chart of the piezoelectric ceramic transformer in the embodiment of the present invention；
The waveform of double polarity pulse signal that Fig. 4 is exported by double polarity pulse signal generation device provided by the invention
Figure；
Fig. 5 is the structure chart of another piezoelectric ceramic transformer.
Specific embodiment
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's all other embodiments obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instructions such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Convenient for the description present invention and simplify description rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " installation ", " connected ",
" connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or be integrally connected；Can be
Mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary, can also be two
Connection inside a element can be wireless connection or wired connection.For those of ordinary skill in the art
Speech can understand the concrete meaning of above-mentioned term in the present invention with concrete condition.
As long as in addition, technical characteristic involved in invention described below different embodiments non-structure each other
It can be combined with each other into conflict.
The embodiment of the present invention provides a kind of double polarity pulse signal generation device, as shown in Fig. 2, including：
Unipolar pulse output unit 21, for output single-pole pulse signal, which is a kind of monopole of narrow spaces
The pulse signal of property.The pulsewidth of unipolar pulse signal in the present embodiment is 5ns (half-wave is wide), peak-to-peak value 2Vpp.The letter
It number can be generated by signal generator, can also handle to obtain by logic gate by the square-wave signal of an arbitrary wavelength.Therefore
Unipolar pulse output unit 21 can be a unipolar pulse signal generator or square wave signal generator and
The combination unit of logic gates.
Piezoelectric ceramic transformer 22, Fig. 3 show the concrete structure of piezoelectric ceramic transformer 22, including input terminal 221, defeated
Outlet 222 and piezoelectrics 223, input terminal are connect with the unipolar pulse output unit, for receiving the unipolarity arteries and veins
Signal is rushed, holding altogether ground connection, piezoelectrics 223 are used to the unipolar pulse signal being converted to double polarity pulse signal, defeated
Outlet exports double polarity pulse signal.The present embodiment uses the high resonant frequency piezoelectricity that a resonant frequency is 38MHz to make pottery
Porcelain transformer, shape are rectangular plate-like, and piezoelectrics material is zirconia titanate, three pieces of electrodes is plated above piezoceramics crystal, respectively
As the input terminal 221 of piezoelectric ceramic transformer, output terminal 222 and holding altogether, plated electrode polarize later, and polarization direction is as schemed
Shown in 3.By experiment it was determined that unipolar pulse is by after piezoelectric transformer so that piezoelectric transformer generates resonance, closes
Suitable structure design causes piezoelectric transformer damping control resonance to shake end cycle at one, and bipolarity can be generated in output terminal
Pulse.The output terminal 223 of piezoelectric ceramic transformer 22 can export signal as shown in Figure 4 as a result, which is center
Frequency is the hyperfrequency bipolar pulse of 84MHz.The centre frequency of bipolar pulse is exported by the frequency of input unipolar pulse
Determine that the piezoelectric transformer of the unipolar pulse of distinct pulse widths and different resonant frequencies is mutual with the resonant frequency of piezoelectric transformer
The bipolar pulse of different center frequency can be generated.
The piezoelectric transformer piezoelectrics of high resonant frequency are not limited to single layer piezoelectric body composition, can also select multi-layer piezoelectric
Body forms, if multi-layer piezoelectric body composition, input terminal 221 and output terminal 222 can be located at the same layer in multiple laminations.
It will be understood by those skilled in the art that the piezoelectric transformer of high resonant frequency according to vibration mode classification include it is a variety of
Type, such as the length vibration shape, the profile vibration shape, the thickness vibration shape and the shearing vibration shape；The piezoelectric transformer of high resonant frequency is according to function
Classification of type includes booster type transformer and step-down type transformer；The shape of piezoelectric ceramic transformer includes a variety of, such as Fig. 3 institutes
Show rectangular plate-like and annular plate-like shown in fig. 5.It is measured by experiment it was determined that selecting any of the above-described type and shape all
It can achieve the object of the present invention.
Above device generates bipolar pulse by high frequency piezo transformer, and circuit structure is simple, and device volume is small,
The centre frequency for exporting pulse is related to the resonant frequency of piezoelectricity piezoelectric ceramic transformer, can reach very high-frequency, break biography
Electronic device parameter itself restricts, and the characteristic due to piezoelectric ceramic transformer in itself in system circuit, and the device is not by electromagnetic field
It influences, electromagnetic radiation will not be generated.
Obviously, the above embodiments are merely examples for clarifying the description, and is not intended to limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And the obvious variation thus extended out or
Among changing still in the protection domain of the invention.
Claims (8)
1. a kind of double polarity pulse signal generation device, which is characterized in that including：
Unipolar pulse output unit, for output single-pole pulse signal；
Piezoelectric ceramic transformer, including input, output end and piezoelectrics, input terminal and the unipolar pulse output unit
Connection, for receiving the unipolar pulse signal, the piezoelectrics are bipolar for the unipolar pulse signal to be converted to
Property pulse signal, output terminal is for exporting the double polarity pulse signal.
2. the apparatus according to claim 1, which is characterized in that the type of the piezoelectric ceramic transformer includes single layer piezoelectric
Ceramic transformer and multilayer piezoelectric ceramic transformer.
3. the apparatus of claim 2, which is characterized in that the piezoelectric ceramic transformer is multilayer piezoelectric ceramic transformation
Device, the input terminal and output terminal are located at wherein one layer in multiple laminations.
4. the apparatus according to claim 1, which is characterized in that the type of the piezoelectric ceramic transformer includes the length vibration shape
Piezoelectric transformer, profile vibration shape piezoelectric transformer, thickness vibration shape piezoelectric transformer, shearing vibration shape piezoelectric transformer.
5. the apparatus according to claim 1, which is characterized in that the type of the piezoelectric ceramic transformer becomes including booster type
Depressor and step-down type transformer.
6. the apparatus according to claim 1, which is characterized in that the shape of the piezoelectric ceramic transformer includes rectangular slab
Shape, circular plate, triangle plate, annular plate-like.
7. the apparatus according to claim 1, which is characterized in that the unipolar pulse output unit is believed for unipolar pulse
Number generator.
8. the apparatus according to claim 1, which is characterized in that the unipolar pulse output unit includes：
Square wave signal generator, for exporting square-wave pulse signal；
Logic gates, for the square-wave pulse signal to be converted to the unipolar pulse signal with specific pulsewidth.
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| CN201510783421.0A CN105306021B (en) | 2015-11-16 | 2015-11-16 | A kind of double polarity pulse signal generation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510783421.0A CN105306021B (en) | 2015-11-16 | 2015-11-16 | A kind of double polarity pulse signal generation device |
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| CN105306021A CN105306021A (en) | 2016-02-03 |
| CN105306021B true CN105306021B (en) | 2018-06-12 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108433744B (en) * | 2018-04-23 | 2023-11-28 | 中国科学院苏州生物医学工程技术研究所 | Ultrasonic transducer, ultrasonic probe and ultrasonic hydrophone |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004265647A (en) * | 2003-02-28 | 2004-09-24 | Tamura Seisakusho Co Ltd | Inverter for cold cathode tube |
| CN1604354A (en) * | 2004-11-03 | 2005-04-06 | 西安康鸿信息技术股份有限公司 | Polarity interleaving type piezo-electric ceramic transformer having reversed phase twin-output |
| CN101753038A (en) * | 2008-12-03 | 2010-06-23 | 中国电子为华实业发展有限公司 | Piezoelectric transformer and driver thereof |
| CN202478408U (en) * | 2012-03-19 | 2012-10-10 | 巫树清 | Electronic impulse meridian therapeutic apparatus |
| CN205142164U (en) * | 2015-11-16 | 2016-04-06 | 中国科学院苏州生物医学工程技术研究所 | Bipolarity pulse signal produces device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6433458B2 (en) * | 2000-04-27 | 2002-08-13 | Matsushita Electric Industrial Co., Ltd. | Method and unit for driving piezoelectric transformer used for controlling luminance of cold-cathode tube |
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- 2015-11-16 CN CN201510783421.0A patent/CN105306021B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004265647A (en) * | 2003-02-28 | 2004-09-24 | Tamura Seisakusho Co Ltd | Inverter for cold cathode tube |
| CN1604354A (en) * | 2004-11-03 | 2005-04-06 | 西安康鸿信息技术股份有限公司 | Polarity interleaving type piezo-electric ceramic transformer having reversed phase twin-output |
| CN101753038A (en) * | 2008-12-03 | 2010-06-23 | 中国电子为华实业发展有限公司 | Piezoelectric transformer and driver thereof |
| CN202478408U (en) * | 2012-03-19 | 2012-10-10 | 巫树清 | Electronic impulse meridian therapeutic apparatus |
| CN205142164U (en) * | 2015-11-16 | 2016-04-06 | 中国科学院苏州生物医学工程技术研究所 | Bipolarity pulse signal produces device |
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Application publication date: 20160203 Assignee: SHENYANG SHENDA ENDOSCOPE Co.,Ltd. Assignor: Suzhou Institute of Biomedical Engineering and Technology Chinese Academy of Sciences Contract record no.: X2020980005455 Denomination of invention: A bipolar pulse signal generator Granted publication date: 20180612 License type: Common License Record date: 20200827 |